/Engine/Plugins/Importers/USDImporter/Source/USDClasses/Public/USDAssetCache2.h
Updates which assets belong to each storage type. You must call this in case you perform direct operations on the asset cache, after those operations are fully complete.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Settings", Meta=(CallInEditor="true")) void RefreshStorage()